Results 121 to 130 of about 36,881 (219)

An Active Knee–Ankle–Foot Orthosis With Torque‐Dense, Low‐Impedance Knee Actuation

Advanced Intelligent Systems, EarlyView.
This article presents the simulation, design, and clinical validation of a robotic active KAFO with torque‐sensitive actuation. By passively and continuously adapting the transmission ratio in response to the knee torque, the torque‐sensitive actuator overcomes the tradeoff between torque, weight, and impedance observed in conventional robot actuators,
Brendon Ortolano, Kai Pruyn, Rosemarie Murray, Lukas Gabert, Tommaso Lenzi   +4 more
wiley   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

Angewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean, Nicolás Montesdeoca, Gilles Berger, Johannes Karges   +3 more
wiley   +1 more source

Acoustic Emission-Based Offshore Pipeline Valve Leakage Detection Toward Enhanced Process Safety. [PDF]

Sensors (Basel)
Qin H, Hao X, Zhu Z, Ren W, Qiu X, Lu Y, Liu H, Zhang Y.   +7 more
europepmc   +1 more source

Study on the Distribution Characteristics of Aerosol Particle Released From Solution Leakage: Based on Solution Temperature Variation

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A simulation experimental device was established and utilized to study the phenomenon of solution leakage in nuclear fuel cycle facilities. The particle size and concentration distribution of aerosols released from solution leakage were investigated at different temperatures using ELPI and LPSA.
Zhi Zhang, Yiren Lian, Shutang Sun, Yeming Zhu, Jin Yan, Jiangyu Niu, Shiqi Zhang, Haoming Dou, Hongchao Sun, Guoqiang Li, Yanlong Qi   +10 more
wiley   +1 more source

On the origin of acoustic emission in the stress-induced martensite regime of shape memory alloys. [PDF]

Nat Commun
Lauhoff C, Weidner A, Lehnert R, Reul A, Pham T, Gutmann MJ, Krooß P, Schmahl WW, Biermann H, Seiner H, Niendorf T.   +10 more
europepmc   +1 more source

Rapid Lab‐Based In Situ Monitoring of Germanium Multiple Quantum Wells Interdiffusion

Advanced Physics Research, EarlyView.
This study emphasizes important insights into thermally activated diffusion control in Ge/SiGe multiple quantum wells for future design of high‐performance group‐IV optoelectronic devices. A particular fast data acquisition is achieved by in situ X‐ray diffraction and the influence of interdiffusion on the optical properties is presented by ...
Diana Ryzhak, Elena Campagna, Markus Andreas Schubert, Yuji Yamamoto, Oliver Skibitzki, Enrico Talamas Simola, Monica De Seta, Giovanni Capellini, Marvin Hartwig Zoellner   +8 more
wiley   +1 more source

Acoustic Emission Characteristics During Shear Failure of Active Waveguide Structure for Rock Slope Monitoring. [PDF]

Sensors (Basel)
Wu Z, Zhang L, Yang J, Dong J, Yu Y, Sun Y.   +5 more
europepmc   +1 more source

Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats

The Anatomical Record, EarlyView.
Abstract The nasal passages of bats that emit their echolocation call through their nostrils have adapted for sound emission as well as standard respiratory and olfactory functions. Rhinolophids, hipposiderids and rhinonycterids all use a high duty cycle (HDC) echolocation strategy.
Carley Goodwin, Jason M. Bourke, Daisuke Koyabu, Kyle N. Armstrong, Vuong T. Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Laura A. B. Wilson   +7 more
wiley   +1 more source

Automatic Classification of Hydrogen-Induced Acoustic Emission Signals in High-Strength Offshore Bolts Using Time-Frequency Feature Engineering. [PDF]

Materials (Basel)
Sabir N, Billson D, Grigg S.
europepmc   +1 more source

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

The Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla, Laura A. B. Wilson, Khizar Hayat, Michael Doube, Vuong Tan Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Daisuke Koyabu   +7 more
wiley   +1 more source